Mpd-055: -28 -ol

  • Modes:
  • Firmware:

    • Many large manufacturers create custom part numbers with this exact pattern – e.g., MPD = Maintenance, Repair & Operations (MRO) – Plumbing Device. “055” = valve type, “28” = size in mm, “OL” = O-ring lubricated.

  • Replace wearable parts (fans, filters) per vendor schedule.
  • For optical units: clean optics with lint-free swabs and optical-grade solvent.

    • Look for additional markings – heat lot codes, manufacturer logos (e.g., SPS, Alcoa, Deutsch, Parker). Use a magnifying glass. OL might be followed by “-CD” (cadmium) or “-NI” (nickel). MPD-055 -28 -OL